<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="utf-8">
    <title>空对象</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link href="//cdn.bootcss.com/bootstrap/3.3.4/css/bootstrap.min.css" rel="stylesheet">
    <!-- HTML5 shim and Respond.js IE8 support of HTML5 elements and media queries -->
    <!--[if lt IE 9]>
    <script src="//cdn.bootcss.com/html5shiv/3.7.3/html5shiv.min.js"></script>
    <script src="//cdn.bootcss.com/respond.js/1.4.2/respond.min.js"></script>
    <![endif]-->
</head>
<script>

</script>
<body>
<%if(customer != null){%>
<p>${customer.nickname}再次刷新会白页,控制台报错！</p>
<%}%>
</body>

</html>